<?php
namespace common\models;

use Yii;
use yii\base\NotSupportedException;
use yii\behaviors\TimestampBehavior;
use yii\db\ActiveRecord;
use yii\web\IdentityInterface;
use common\logic\Sms;

/**
 * User model
 * @property integer $id
 * @property string $uid
 * @property string $username
 * @property string $password_hash
 * @property string $password_reset_token
 * @property string $email
 * @property string $nickname
 * @property string $auth_key
 * @property integer $status
 * @property integer $created_at
 * @property integer $updated_at
 * @property string $phone
 * @property string $birthday
 * @property string $invite_code
 * @property string $invite_code_signup
 * @property int $fund_amount;
 * @property string $password write-only password
 */
class User extends ActiveRecord implements IdentityInterface {
    public $password;
    public $verifyCode;
    public $inviteCode;

    const SCENARIO_LOGIN_PW = 'login_pw';
    const SCENARIO_LOGIN_VERIFYCODE = 'login_vc';
    const SCENARIO_PASSWORD_RESET = 'user_password';
    const SCENARIO_REGISTER = 'register';

    const STATUS_DELETED = 0;
    const STATUS_ACTIVE = 10;

    const LOGIN_TYPE_PW = 1;
    const LOGIN_TYPE_VERIFYCODE = 2;

    const ID_TYPE_ID = 'id';
    const ID_TYPE_USERNAME = 'username';
    const ID_TYPE_EMAIL = 'email';

    const GENDER_UNKNOWN = 0;
    const GENDER_MALE = 1;
    const GENDER_FEMALE = 2;
    const GENDER_TEXT = [
        self::GENDER_MALE => '男',
        self::GENDER_FEMALE => '女',
        self::GENDER_UNKNOWN => '未知',
    ];

    public static $entity = null;

    public function attributeLabels() {
        return [
            'id' => 'uid',
            'username' => '用户名',
            'nickname' => '昵称',
            'password' => '密码',
            'phone' => '手机号码',
            'birthday' => '生日',
            'verifyCode' => '验证码',
        ];
    }

    /**
     * @inheritdoc
     */
    public static function tableName() {
        return '{{%user}}';
    }

    /**
     * @inheritdoc
     */
    public function behaviors() {
        return [
            TimestampBehavior::className(),
        ];
    }

    /**
     * @inheritdoc
     */
    public function rules() {
        return [
            [
                'status',
                'default',
                'value' => self::STATUS_ACTIVE
            ],
            [
                'status',
                'in',
                'range' => [
                    self::STATUS_ACTIVE,
                    self::STATUS_DELETED
                ]
            ],
            [
                'gender',
                'in',
                'range' => [
                    self::GENDER_UNKNOWN,
                    self::GENDER_MALE,
                    self::GENDER_FEMALE
                ]
            ],
            [
                'password',
                'passwordValidator'
            ],
            [
                'verifyCode',
                'verifycodeValidator'
            ],
            [
                'email',
                'email'
            ],
            [
                'nickname',
                'string',
                'max' => 64
            ],
            [
                'phone',
                'string'
            ],
            [
                'birthday',
                'date',
                'format' => 'php:Y-m-d',
                'min' => '1930-01-01',
                'max' => date('Y-m-d'),
            ],
            [
                [
                    'oldPassword',
                    'newPassword',
                    'type'
                ],
                'required',
                'on' => self::SCENARIO_PASSWORD_RESET
            ],
        ];
    }

    /**
     * @inheritdoc
     */
    public static function findIdentity($id) {
        return static::findOne([
            'id' => $id,
            'status' => self::STATUS_ACTIVE
        ]);
    }

    /**
     * @inheritdoc
     */
    public static function findIdentityByAccessToken($token, $type = null) {
        throw new NotSupportedException('"findIdentityByAccessToken" is not implemented.');
    }

    /**
     * Finds user by username
     * @param string $username
     * @return static|null
     */
    public static function findByUsername($username) {
        $entity = static::findOne([
            'username' => $username,
            'status' => self::STATUS_ACTIVE
        ]);
        return self::$entity = $entity;
    }

    public static function findByPhone($phone) {
        $entity = static::findOne([
            'phone' => $phone,
            'status' => self::STATUS_ACTIVE
        ]);
        return self::$entity = $entity;
    }

    /**
     * Finds user by password reset token
     * @param string $token password reset token
     * @return static|null
     */
    public static function findByPasswordResetToken($token) {
        if (!static::isPasswordResetTokenValid($token)) {
            return null;
        }

        return static::findOne([
            'password_reset_token' => $token,
            'status' => self::STATUS_ACTIVE,
        ]);
    }

    /**
     * Finds out if password reset token is valid
     * @param string $token password reset token
     * @return bool
     */
    public static function isPasswordResetTokenValid($token) {
        if (empty($token)) {
            return false;
        }

        $timestamp = (int)substr($token, strrpos($token, '_') + 1);
        $expire = Yii::$app->params['user.passwordResetTokenExpire'];
        return $timestamp + $expire >= time();
    }

    /**
     * @inheritdoc
     */
    public function getId() {
        return $this->getPrimaryKey();
    }

    /**
     * @inheritdoc
     */
    public function getAuthKey() {
        return $this->auth_key;
    }

    /**
     * @inheritdoc
     */
    public function validateAuthKey($authKey) {
        return $this->getAuthKey() === $authKey;
    }

    /**
     * Validates password
     * @param string $password password to validate
     * @return bool if password provided is valid for current user
     */
    public function validatePassword($password) {
        return Yii::$app->security->validatePassword($password, $this->password_hash);
    }

    /**
     * Validates the password.
     * This method serves as the inline validation for password.
     * @param string $attribute the attribute currently being validated
     * @param array $params the additional name-value pairs given in the rule
     */
    public function passwordValidator($attribute, $params) {
        if (!$this->hasErrors()) {
            $user = self::findByPhone($this->phone);

            if (!$user || !Yii::$app->security->validatePassword($this->password, $user->password_hash)) {
                $this->addError($attribute, '用户名或密码错误');
            }
        }
    }

    public function verifycodeValidator($attribute, $params) {
        if (!$this->hasErrors()) {
            $user = self::findByPhone($this->phone);
            if (!$user) {
                $this->addError($attribute, '验证码错误');
            }
            $res = Sms::verifyAuthCode($this->phone, $this->verifyCode, Sms::CODE_TYPE_LOGIN);//just for now
            if ($res['err'] != 0) {
                $this->addError($attribute, $res['msg']);
            }
        }
    }

    /**
     * Generates password hash from password and sets it to the model
     * @param string $password
     */
    public function setPassword($password) {
        $this->password_hash = Yii::$app->security->generatePasswordHash($password);
    }

    /**
     * Generates "remember me" authentication key
     */
    public function generateAuthKey() {
        $this->auth_key = Yii::$app->security->generateRandomString();
    }

    /**
     * Generates new password reset token
     */
    public function generatePasswordResetToken() {
        $this->password_reset_token = Yii::$app->security->generateRandomString() . '_' . time();
    }

    /**
     * Removes password reset token
     */
    public function removePasswordResetToken() {
        $this->password_reset_token = null;
    }

    /**
     * Logs in a user using the provided username and password.
     * @return bool whether the user is logged in successfully
     */
    public function login() {
        if ($this->validate()) {
            return Yii::$app->user->login(self::$entity, 3600 * 24 * 30);
        }

        return false;
    }

    public function modifyUserinfo() {
        if ($this->validate()) {
            return $this->save();
        }
        return false;
    }

    public static function generateInviteCode($phone) {
        return mt_rand(10000, 99999) . substr(md5($phone), -8);
    }

    public static function generateUid() {
        return uniqid() . mt_rand(0, 9);
    }
}
